| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Fri, Aug 12, 2016 | 11D | Weapon used in the Vietnam War | Kelly Clark | Shortz |
| Mon, Nov 23, 2009 | 59A | Toxic herbicide | Ben Pall | Shortz |
| Fri, Aug 07, 1998 | 60A | Deleterious defoliant | Frank Longo | Shortz |
| Sun, Nov 21, 1993 | 76A | Toxic defoliant | Peter Gordon | Shortz |